Which statement best describes double outlet right ventricle (DORV) with a VSD?

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Multiple Choice

Which statement best describes double outlet right ventricle (DORV) with a VSD?

DORV is characterized by both great arteries arising from the right ventricle, and a large ventricular septal defect that provides the pathway for blood from the left ventricle to reach the outflow tracts. Because the VSD is typically large and lies in a position that channels flow toward the outflow tracts, the left ventricle can eject blood toward the aorta and/or the pulmonary artery through that defect. This makes the description that there is a VSD allowing outflow from the ventricle to both great arteries the best way to capture the usual anatomy of DORV. The other ideas aren’t defining features: DORV almost always has a VSD, not none; a patent foramen ovale is a common incidental finding but not a defining feature of the condition; and a coronary fistula is not part of the typical DORV description.

DORV is characterized by both great arteries arising from the right ventricle, and a large ventricular septal defect that provides the pathway for blood from the left ventricle to reach the outflow tracts. Because the VSD is typically large and lies in a position that channels flow toward the outflow tracts, the left ventricle can eject blood toward the aorta and/or the pulmonary artery through that defect. This makes the description that there is a VSD allowing outflow from the ventricle to both great arteries the best way to capture the usual anatomy of DORV.

The other ideas aren’t defining features: DORV almost always has a VSD, not none; a patent foramen ovale is a common incidental finding but not a defining feature of the condition; and a coronary fistula is not part of the typical DORV description.

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